The paper deals with the experimental characterization of different 280 mm diameter tilting pad journal bearings for turbomachines using a dedicated test rig. articles were 5-pad Direct Lube Rocker Pivot bearing, Flooded and 4-pad Ball Socket bearing. three tested in their specific design range operating conditions. Their static dynamic behavior was investigated as function parameters. In parti...

Optimized concentration of reduced graphene oxide (rGO) in the lube is one of the important factors for effective lubrication of solid body contacts. At sufficiently lower concentration, the lubrication is ineffective and friction/wear is dominated by base oil. In contrast, at sufficiently higher concentration, the rGO sheets aggregates in the oil and weak interlayer sliding characteristic of g...

wind gearbOx technOLOgy is developing at a fast pace, not least due to operators demanding ever more power and efficiency. Experience has shown that the lubricant used is a crucial factor in meeting the wish for ever-increasing performance. Besides strictly technical requirements, aspects of economy and ecology are receiving more and more attention in lubricant selection. The technical requirem...

Abstract: The paper presents an example of qualitative and quantitative application of a method for assessing component importance of a reliability structure in the case of a complex technical system based on the example of the subsystem of a marine power plant, that is, a lube oil system for sealing a stern tube. An example of the importance of the analysis considered in terms of not only reli...

FMEA is a useful tool that helps to find possible flaws in a system or element, mainly in the design phase. But it is a mere document that has no further ''direct'' use than the observation. Mapping all this knowledge into a Bayesian Network would make it possible to use the information in further ways, like software applications for maintenance. A good FMEA has the necessary features to build ...

Because of the impact lubrication on efficiency and lifecycle cost emissions, lubricating-oil consumption (LOC) is one key indicators in research development internal combustion engines. State-of-the-art methods for LOC measurement are based use a certain tracer to track oil consumption. However, all currently available tracers have their downsides (e.g., radioactive tracer, corrosive etc.). Th...